21028599

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 32394240

約数和(自身を除く): 11365641

約数列:

[1, 3, 9, 27, 47, 73, 141, 219, 227, 423, 657, 681, 1269, 1971, 2043, 3431, 6129, 10293, 10669, 16571, 30879, 32007, 49713, 92637, 96021, 149139, 288063, 447417, 778837, 2336511, 7009533, 21028599]

約数ペア:

[(1, 21028599), (3, 7009533), (9, 2336511), (27, 778837), (47, 447417), (73, 288063), (141, 149139), (219, 96021), (227, 92637), (423, 49713), (657, 32007), (681, 30879), (1269, 16571), (1971, 10669), (2043, 10293), (3431, 6129)]